Indexing/Abstracting
- Road Directory of Open Access Scholarly Resources
- WorldCat
- World Wide Science
- BASE – Bielefeld Academic Search Engine
- ProQuest
- OpenAIRE – EU supported initiative to foster Open Science in Europe
- Baidu Scholar
- vlexJustis – European Union
- CNKI Scholar (China National Knowledge Infrastructure)
- SUNCAT- Serials Union Catalogue for the UK research community (UK)
- RePec
- Ulrich’s Periodicals Directory
- SHERPA/RoMEO
- SafetyLit
- Google Scholar
